Brewer–Dobson circulation

The Brewer–Dobson circulation refers to the Lagrangian-mean meridional overturning circulation in the stratosphere. It has a two-cell structure in the lower stratosphere, in which air ascends in the tropics and then moves poleward and descends in the middle and high latitudes in both hemispheres. A single-cell circulation exists at higher altitudes with air ascending in the summer hemisphere, crossing the equator, and descending in the winter hemisphere. The two-cell structure was first proposed by Dobson and Brewer to explain the observations of ozone and water vapor in the stratosphere.

Brewer, A. W., 1949: Evidence for a world circulation provided by measurements of helium and water vapour distribution in the stratosphere. Quart. J. Roy. Meteor. Soc., 75, 351–363, doi:10.1002/qj.49707532603. Dobson, G. M. B., 1956: Origin and distribution of polyatomic molecules in the atmosphere. Proc. Roy. Soc. London, 236A, 187–193, doi:10.1098/rspa.1956.0127. Dunkerton, T., 1978: On the mean meridional mass motions of the stratosphere and mesosphere. J. Atmos. Sci., 35, 2325–2333, doi:10.1175/1520-0469(1978)035<2325:OTMMMM>2.0.CO;2. Plumb, R. A., 2002: Stratospheric transport. J. Meteor. Soc. Japan, 80, 793–809, doi:10.2151/jmsj.80.793.

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Term updated 12 June 2017.